Summary of golden measurements at a v-factory

The precision and discovery potential of a neutrino factory based on muon s torage rings is summarized. For three-family neutrino oscillations, we anal yze how to measure or severely constrain the angle theta (13), CP violation , MSW effects and the sign of the atmospheric mass difference Deltam(23)(2) . The appearance of "wrong-sign muons" at three reference baselines. is con sidered: 732, 3500 and 7332 km. We exploit the dependence of the signal on the neutrino energy, and include realistic background estimations and detec tion efficiencies as well. The optimal baseline turns out to be O(3000 km). (C) 2001 Elsevier Science B.V. All rights reserved.